How Angularjs implements sharing data between multiple pages_AngularJS

//家电维修共享数据的服务 
angular.module("sqhApp").factory("repairDeviceDataShareServer",function($http,$state,$ionicPopup){ 
return { 
//缓存当前需要维修的设备名称、数量、唯一标识 
deviceRepairObj : [], 
//小区位置 
xiquLocation:{}, 
//预约时间 
appointmentDate:{ 
"date":"", 
"time":"" 
}, 
//预约日期界面回退到上一个界面的记录 
appointmentBackPage:"", 
//获取地址回退界面记录 
locationBackPage:"", 
//家电维修描述 
questionDesc:"", 
//确认预约 
confirmAppointment : function(resultJson){ 
var url = "/index.php/Wap/Homemake/createRepairOrder.html"; 
var p = $http.post(url,resultJson); 
p.success(function(response,header,config,status){ 
//提交订单成功 
if(response.status == 0){ 
//提示需要选择设备 
var alertPopup = $ionicPopup.alert({ 
title: '家电维修', 
template: response.msg 
}); 
alertPopup.then(function(res) { 
$state.go("appliance_index"); 
}); 
}else{ 
//提示需要选择设备 
var alertPopup = $ionicPopup.alert({ 
title: '家电维修', 
template: response.msg 
}); 
alertPopup.then(function(res) { 
}); 
} 
}); 
}, 
//确认预约提交的数据 
formData:{} 
}; 
}); 

//预约时间控制器 
angular.module("sqhApp").controller("orderDateController", ["$scope", "$state", 
'$ionicPopup', 'repairDeviceDataShareServer','appointmentDateService', 
function ($scope, $state, $ionicPopup,repairDeviceDataShareServer,appointmentDateService) { 
$scope.lists=[]; 
//从服务器获取时间 
appointmentDateService.getAppointmentDateList($scope); 
//回退到上一个页面 
$scope.back = function(){ 
var backPage = repairDeviceDataShareServer.appointmentBackPage; 
//如果没有记录值，则跳转到家电清洗服务包目录 
if(backPage == ""){ 
$state.go("appliance_index"); 
}else{ 
$state.go(backPage); 
} 
} 
//选择时间 
$scope.selectTime = function(myevent){ 
var currentObj = $(myevent.target); 
currentObj.closest("div.time_list").find(".line_height_35px").removeClass("bg_fdd000 color_e5005a").addClass("bg_ff"); 
currentObj.addClass("bg_fdd000 color_e5005a").removeClass("bg_ff"); 
}; 
//选择日期 
$scope.selectDate = function(myevent){ 
var currentObj = $(myevent.target); 
currentObj.closest("div.overflow_hidden").find("div.float_left").removeClass("color_e5005a"); 
currentObj.closest("div.float_left").addClass("color_e5005a"); 
}; 
//确认时间日期 
$scope.confirmDateTime = function(){ 
var selectObjs = $(".bg_f8f8f8 .color_e5005a"); 
//获取日期对象 
var dateObj = $(selectObjs[0]); 
if(dateObj.length ==　0){ 
alert("请选择日期"); 
return false; 
} 
//获取时间对象 
var timeObj = $(selectObjs[1]); 
if(timeObj.length ==　0){ 
alert("请选择时间"); 
return false; 
} 
//repairDeviceDataShareServer.appointmentDate.date = dateObj; 
repairDeviceDataShareServer.appointmentDate.date = "2016-6-6"; 
repairDeviceDataShareServer.appointmentDate.time = timeObj.html(); 
this.back(); 
}; 
}]); 

angular.module("sqhApp").controller("applianceIndexController", ["$scope", "$state","repairDeviceDataShareServer","applianceWashShareServer", function ($scope, $state, repairDeviceDataShareServer,applianceWashShareServer) { 
//初始化家电维修共享数据 
repairDeviceDataShareServer.deviceRepairObj = []; 
repairDeviceDataShareServer.xiquLocation = {}; 
repairDeviceDataShareServer.appointmentDate = {"date":"","time":""}; 
repairDeviceDataShareServer.appointmentBackPage = {}; 
repairDeviceDataShareServer.locationBackPage = {}; 
repairDeviceDataShareServer.formData = {}; 
repairDeviceDataShareServer.questionDesc = ""; 
//初始化家电清洗共享数据 
applianceWashShareServer.washType=""; 
applianceWashShareServer.formData={}; 
applianceWashShareServer.goodsSelected=[]; 
}]);